#include "LoginView.h"

#include "LoginWidget.h"
#include "RegisterWidget.h"

#include <QPainter>
#include <QBoxLayout>
#include <QStackedWidget>

#include <QDebug>

LoginView::LoginView(QWidget *parent) : QWidget(parent)
{
    initialize();
    initLayout();
    setStackIndex(0);
    connectSignalsAndSlots();
}

void LoginView::paintEvent(QPaintEvent *event)
{
    QWidget::paintEvent(event);
    QPainter painter(this);
    QPixmap pixmap(":/resource/background/login.jpg");
    painter.drawPixmap(0, 0,
                       pixmap.scaled(width(), height(), Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation));
}

void LoginView::setStackIndex(int index)
{
    m_stackedWidget->setCurrentIndex(index % m_stackedWidget->count());
}

void LoginView::initialize()
{
    m_vBoxLayout    = new QVBoxLayout();
    m_stackedWidget = new QStackedWidget(this);
    m_loginWidget   = new LoginWidget(this);
    m_loginWidget->setTitle("登录管理员账号");
    m_registerWidget = new RegisterWidget(this);
}

void LoginView::initLayout()
{
    setLayout(m_vBoxLayout);
    m_vBoxLayout->setAlignment(Qt::AlignCenter);
    m_vBoxLayout->addWidget(m_stackedWidget);
    m_stackedWidget->addWidget(m_loginWidget);
    m_stackedWidget->addWidget(m_registerWidget);
}

void LoginView::connectSignalsAndSlots()
{
    connect(m_loginWidget, &LoginWidget::signalLogin, this, &LoginView::slotLogin);
    connect(m_loginWidget, &LoginWidget::signalCancel, this, &LoginView::slotCancelLogin);
    connect(m_registerWidget, &RegisterWidget::signalConfirm, this, &LoginView::slotConfirmAcc);
    connect(m_registerWidget, &RegisterWidget::signalCancel, this, &LoginView::slotCancelAcc);
    connect(m_stackedWidget, &QStackedWidget::currentChanged, this, &LoginView::slotStackIndexChanged);
}

void LoginView::slotLogin()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
    emit signalLogin();
}

void LoginView::slotCancelLogin()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
    emit signalCancelLogin();
}

void LoginView::slotConfirmAcc()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
}

void LoginView::slotCancelAcc()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
}

void LoginView::slotStackIndexChanged()
{
    qDebug() << __FUNCTION__ << __LINE__;
}